Apparatus for making prepared roofing.



A. s. SPIEGEL, APPARATUS FOR MAKING PREPARED Rooms.

APPLICATION FILED OCT. 5. 1918.

Patented Apr. 22, 1919 EM ,ion l ALEXANDER SPIEGEL, or onlcaeo, ILLINOIS}:

. AIIARATUS FOR'MAKING PREPARED ROOFING.

" Application filed October 5,

To all whom it may concern:

Be it known that I, ALEXANDER 8.; SPIE- GEL, a citizen of the United States, and resident of Chicago, Illinois, have invented cer' tain new and useful Improvements in Apparatus for Making Prepared Roofing, of which the following is a specification.

I My invention relates to themanufacture of roofing and particularly to a machine for cutting a web of prepared roofing material .into roofing elements.

' The invention consists in the features and combination and arrangement of parts here inafter described and particularly pointed out in the claims. v r

In the accompanying drawings,

, Figure 1 represents one of the elements in the making of which my invention plays a part.

Fig. 2 is a plan view of a portion of. a Web .of. the roofing material showing in dotted lines longitudinal slots which my present apparatus is designed to make in the webbing. This view alsoindicates in dotted lines, extending transversely of the web, the points at which the web is cut in order to form in connection with the longitudinal slots shown in dotted linesthe element of Fig. l.

Fig. 3 is a view ofthe rotary cutters, the lower rotary cutter being shown in section and these cutters being adapted to receive the web fed between them for cutting the longitudinal slots thereim M Fig. 3. A Fig. 5 is a detail of a part of the upper and lower cutters.

Fig. 6 is a face View of the lower cutter.

40 In these drawings 1 indicates a roller having ribs or cutters 2 projecting from its surface and extending in a direction circum ferentially, but only partly around the peripheral face of the roll'or disk., 3 indicates the complementary.cutter, or die'element,

which is of hollow form, and is provided with die openings properly spaced apart to conform to the spacing of the punching ribs or cutters 2 of the disk or roller 1.

There are a series of these cutters 2 and die openings 4 disposed at different points along the axis ofthe upper'and lower punch and die elements, so that the slots indicated at a in Fig. 2 .will be formed by the passage of the web ofroofing material between these cutting elements. This roofing material is Specification of Letters l atent. "Patented m. 232 rare.

1918. Serial No. 257,078.

cutting element is also made dovetail incross-section and as a result of this formation the piece of materialcut from the web in making the slot therein will not stick in the die openingand gum up and finally preventproper cutting actions being per formed, but these out portions will be cleared from the die openings 4 and will fall away through-the interior ofthe lower die roll, or disk. .The flaring form of the die opening I prefer to make both laterally and longitudinally, so that a clearance will be left all around this die immediately in rear of the entrance to the die opening to secure a good clearance at all points, as indicated in dotted lines in Fig. 6.

While .I prefer to make the punch rib of the dove-tailed form in cross section and also longitudinally, I may employ a cutter or punch of a rectangular form in cross section. Thepunch of dove-tailed form will clear itself from the opening it punches in the material better than will a punch having its side faces-at right angles to its out ting face."

It will be understood that the cutters v p v above mentioned are used in connection with 35 -Figr l is'avieii at right angles to that of suitable means for feeding the material or web between said cutters and any suitable means may be embodied in the machine for severing the'web transversely, for instance, on the lines b.-b of Fig. 2, sothat the article .of Fig. 1 will be produced. i

There may be a series of the disks arranged side by side, or if a roll is used the die openings, and likewise the punches, are spaced apart along the same.

What I claim is; j

1. A machine for cutting a web of prepared roofing material of the type which has a thick pasty asphalt coating and a grit surface comprising a pair of rotary members, one of which has punching ribs eX- tending circumferentia-lly thereof, but of a length less than the CII'CUHlfOIBDCG of they member and a second member having a. complementary die opening to coact with the punching rib, said die opening flaring in a direction away from the entrance for the punclnand communicating with a free space adjacent its larger side for the discharge of the cuttings substantially as described.

2. A machine for cutting a web of. prepared roofing material of the type which has a thick pasty asphalt coating and a grit surface comprising a rotary punch member hav ing a circumferentially disposed punch'rib, a rotary die member having a die opening 'to receive said rib, said opening being flared away from the mouth through which the punch enters and communicating with the open interior of the member for the discharge of the cuttings, the said punch rib being of dove-tail form in cross-section substantially as described.

3. In a combination in a machine of the class described a punch roll having a punch rib extending circnmferentiallv thereof, a die roll having an opening to. receive the punch, said punch and die opening being of dovetail formation, both transversely and longitudinally, and said die opening communicating at its larger end with an adjacent free space for the dischar e of the cuttings, substantially as describe In testimony whereof, I afiiX my signature.

ALEXANDER S. SPIEGELQ 

